WorksheetsOnRamps U0 ET 18 Review
Total questions: 14
Worksheet time: 2hrs 45mins
What mass of O2 will be needed to burn 36.1 g of B2H6?
3.5 mol of O2
123 g O2
How many moles of carbon dioxide are produced from the combustion of 110 g of CH4?
A student burns 1.50 mol C3H8 according to the following reaction:
C3H8 + 5O2 → 3CO2 + 4H2O
How many grams of carbon dioxide are produced?
44.0 g
66.1 g
132 g
198 g
Gas grills use propane fuel. The combustion of propane is represented in this equation:
C3H8 + 5O2 ----> 3CO2 + 4H2O. How many grams of propane will burn when 36.0 moles of water are formed?
4.89 g C3H8
316 g C3H8
396 g C3H8
528 g C3H8
CH4 + 2H2O --> CO2 + 4H2 What is the limiting reactant when 20g CH4 react with 15g H2O?
molar mass CH4 16g/mol and H2O 18g/mol
How much SOCl2 is produced when 16.2g SO2 react with 13.7g PCl5?
7.82g
A limiting reactant is a reactant that.....
runs out during a chemical reaction
causes a reaction to stop
determines the amount of products that can be made
all of these
When reacting Na with Cl2, we calculated that the theoretical yield should be 13 grams. Our actual yield was 12.5 grams. What is the percent yield?
90.4%
104%
96.15%
1.04%
2Fe2O3 + C → Fe + 3CO2
You add 28 grams of carbon. You find the actual yield to be 181.2 grams of CO2. What is the percent yield of CO2? (Hint: calculate theoretical yield of CO2 first)
58.83%
308%
6435%
15.5
P4 + 6Cl2 --> 4PCl3 The reaction of 75.0g P4 with excess chlorine gas produces 110g PCl3 in lab.
Find the theoretical yield and calculate percent yield for the reaction.
Use molar mass P4 =124 g/mol and PCl3 = 137.5 g/mol
What is the molarity of a 0.5L sample of a solution that contains 60.0 g of sodium hydroxide (NaOH). Use 40 g/mol for NaOH.
0.8 M
1.5M
3.0M
6.0M
What is the molarity of 4 grams of sodium chloride in 3,800 mL of solution?
Use 59 g/mol for molar mass of NaCl.
